One-way valve.



No. 709,252. Paunted sept. I6, |9- o2 .5. H. GOLD.

ONE WAY VALVE.

(Application led. Oct. 16, 1901.) (N0,Mudel.)

l" ir IIIIHI THE NORRS PETER S C0, PHO'I'O-LITHO,Y WASHINGTON, D. C.

v. Mlllllllllllnh NITED STATES EGBERT H. GOLD, OF CHICAGO, ILLINOIS.

ON E-WAY VALVE.

SPECIFICATION forming part of Letters Patent No. 709,262, datedSeptember 16, 1902.

Application filed October 16, 1901. Serial No. 78,801. (No model.)

T0 otZ whom, it may concern:

Be it known that i, EGBERT H. GOLD, a citi` zen of the United States,residing at Chicago, inthe county of Cook and State of Illinois, haveinvented certain new and useful Improvements in One-Way Valves, of whichthe following is a specification.

My invention relates to that class of valves which are used-insituations and under conditions Whichmake it desirable to provide aready means for the escape of water of condensation or other fluid fromtime to time withoutopeningthe main valve and is adapted for use as anair-valve, steam-valve, or the like, but is particularly adapted to meetthe requirements and exigencies of service which must be met by atrain-pipe'valve upon railway-trains. l

Among the objects of my invention are, first, to provide a simple,strong, and positively operating valve; second, to provide simple meansfor opening a bleeding-valve without unseating the main valve, and,third, to provide a valve which maybe manipulated in such a manner thata continuous movement of the valve-manipulating means will first open anauxiliary or bleeding valve and will then open the main valve. These andsuch other objects as may hereinafter appear are attained by the devicesillustrated in the accompanying drawings, in which- Figure 1 shows avertical transverse section through my improved valve and valve-casing.Fig. 2 shows a horizontal cross-section through the valve-casing on theline 2 2 of Fig. l looking in the direction indicated by the arrows andshowing a plan view of `the valve. Fig. 3 is a cross-sectional view onthe line 3 3 of Fig. 2. Fig. 4 is a vertical sectional view through amodified form of my improved valve; and Fig. 5 is a plan View of thevalve E and a portion of the arm G, showing a modified form of thevalve-stem in section.

Like letters of reference indicate the same parts in the several figuresof the drawings.

Referring by letter to the accompanying drawings, A is a valve-casinghaving a steaminlet port B and a steam-outlet port O. The casing A isalso provided with a suitable opening which is closed by the screw capD, through which the interior of the casing is accessible for purposesof assembling and repair.

Eis a valve for closing the outlet-port O. This valve is provided with avalve-stem F, which passes loosely through `an arm G and is providedwith a terminal nut f, which is so arranged that as the arm Gis liftedit will engage the under side of said nut fand will lift the valve-stemF and the valve E, attached thereto. The nut f is also so located uponthe stem F as to provide lost motion between the arm G and the Linderside of said nut, for a purpose hereinafter explained. The arm G ismounted upon a spindle H, which is journaled in the casing A, at oneside of the valve E, and is provided with an extension I, which passesout of the casing through a stufngbox. Upon the outer end of theextension I is mounted a handle J.

g is a bleeding-valve, which is arranged at one side of the valve-stem Fand may consist of a stem attached at its upper end to the arm G andhaving its coneshaped lower end seated in the bleeding-port g'.

As shown in the drawings, the inside of the casing A is provided with anannular-lug or shoulder c, the upper surface of which constitutes theseat for the valve E.

In the preferred form of my device the bleedingport g', as shown inFigs. l and 2, is an opening through the valve E at one side of thevalve-stern F. In the modification shown in Fig. 4 I have shown thebleeding-port as an opening through the shoulder c at one side of thevalve-seat. I prefer 1ocating the bleeding-port g on the opposite sideof the valve-stem F from the spindle H, as I thereby obtain a freeropening of the valve g without unseating the main valve E because of thegreater travel of the outer end of the arm G.

In order to insure the seating of the bleeding-valve g within thebleeding-port g' when the bleeding-port is located as shown in Figs. land 2, it is necessary to provide a guide of some sort between the arm Gand the valve E; otherwise the slightest rotation of the valve E uponits stern F would `throw the bleeding-port g' out of line with thebleeding-valve g. One form of such guide, as shown in Figs. l and 2,consists of vertical ribs K upon the upper surface of the valve E andadjacent to the sides of the arm G.

Another simple means of insuring the seating of the bleeding-Valve g inthe bleedingport g is to loosely mount the arm G upon an angularvalve-stem F', such angular valvestein acting as .a guide for the arm Gin its movement between the valve E and the nut f, so as to insure thereturn of the bleedingvalve g to its seat in the bleeding-port g.

The operation of my device is as follows: Normally the pressure of steamentering through the port B will hold the main valve and thebleeding-valve tightly to their respective seats. Whenever in order toallow the escape of water of ,condensation it is desired to bleed thevalve, it is quite usual to slightly open the main valve. The result ofthis practice, as is Well known to railroad men and others accustomed tohandle steam under high pressure, is that the action of live steamescaping through the slightly-opened valve causes a wear and rapiddestruction of,

the valve, commonly known as f wire-drawing.7 With my new valve thiswire-drawing may be entirely avoided,for when the handle .I is movedslightly in a direction to open the valve the arm G and thebleeding-valve g, attached thereto, are immediately lifted, therebyopening the bleeding-port g and allowing the bleeding of the main valveand the free escape of the water of condensation through saidbleeding-port without unseating the main valve, as the lost motionbetween the arm G and the nut f allows such free opening of thebleeding-valve without unseating the main valve, as is shown in dottedlines in Fig. 4. When it is desired to open the main valve, the movementof the arm J is continued to its extreme open position, as shown indotted lines in Fig. l, unseating the valve E -and swinging it back toone side of the casing, thereby providing a free and unobstructedpassage from the inlet-port B through the casing and out through theoutlet-port C. It will thus be seen that with my device I am enabled toat will open either the bleeding-valve or the main valve by means of asingle valve-handle, and my construction is so simple that to accomplishthis result it is only necessary to provide in my device, in addition tothe main valve and its usual operating mechanism, the bleedingvalve g,which, as shown, may be simply a stem with a conical point, thebleeding-port g', which may be merely a small drill-hole, and a suitableguide to insure the seating of the bleeding-valve in the bleeding-port.

Various modifications other than those indicated in the drawings may bemade Withou-t departing from the spirit of my invention, and suchmodifications are contemplated hereby.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a valve, the combination with a casing, of a main valve seatedtherein, means for opening said main valve, a lost-motion connectionbetween' said main valve and said valve-opening means, a bleeding-portthrough said main valve, and at one side of the center thereof,ableeding-valve carried by said valveopening means and arranged to closesaid bleeding-port, and coengaging means upon said main valve and saidvalve-opening means to insure the seating of said bleeding-valve in saidbleeding-port, substantially as described.

2. In a valve, the combination with a casing, of a valve-seat, a mainvalve arranged to be seated thereon, a valve-stem carried by said mainvalve, a lifting-arm journaled in one side of said casing, a lever-armloosely engaging said valve-stem, a stop carried by said valve-stem Vtoprovide a lost motion between said valve and said lever-arm, ableeding-port at one side of said valve-stem, and a bleeding-valvecarried by said lever-arm, substantially as described.

3. In a valve, the combination with a valvecasing, of a main valveseated therein, an arm journaled in one side of said casing, alostmotion connection between said arm and said valve, a bleeding-portat one side of said connection, a bleeding-valve carried by said arm andarranged to close said port, a spindle rigidly attached to the journaledend of said arm and extending through said casing,and means attached tothe external end of said spindle for manually opening the said valve,substantially as described.

4. In a valve, the combination with a casing, of a main valve seatedtherein, a valvestem carried by said main valve, an arm journaled withinsaid casing, and at one side of said valve, a lost-motion connectionbetween said arm and said valve-stem, a bleeding-port located at oneside of said valve-stem, a bleeding-valve carried by said arm andarranged to close said bleeding-port, means connected with the journaledend of said arm for manually operating said valve, substantially asdescribed.

5. In a valve, the combination with a casing, provided with an inlet andan outlet port, of a main valve arranged to close said outletport, anarm journaled Within said casing, at one side of said main valve andopposite to said inlet-port, a lost-motion connection between said 'armand said main valve, a bleedingport at one side o'f said connection, ableeding-valve carried by said arm and arranged to close saidbleeding-port, and means for manually swinging said arm upon itsjournaled end so as to successively open first the bleeding-valve andthen the mainvalve, and then to swing the valvel mechanism to one sideof said casing and away from said inletport, substantially as described.

EGBERT H. GOLD.

Witnesses:

M. E. SHIELDS, E. Y. GRIDLEY.

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